the ultimate one man sealed message reading system\n1. collecting the envelopes
2. reading the messages
3. returning the card and envelope
4. returning the next to the last message
5. reading the last message\nrobert parrish
1937
you'd be surprised Robert Parrish

The Ultimate One Man Sealed Message Reading System

1. Collecting the Envelopes
2. Reading the Messages
3. Returning the Card and Envelope
4. Returning the Next to the Last Message
5. Reading the Last Message

getting the impression\nquestions are written on paper and put into envelopes, after the questions have been answered the envelopes are burnt in a bowl\ngeorge b. anderson\nburning questions\nthomas alan waters\nburning questions ii\nthomas alan waters
1949
it must be mindreading George B. Anderson

Getting the Impression

questions are written on paper and put into envelopes, after the questions have been answered the envelopes are burnt in a bowl

great slate test\nchosen card divined on slate and duplicate writing appears on another slate, repeated with random name written down by spectator\nrobert parrish\nlaurie ireland's "three slate routines" (1930s)
1974
the pallbearers review vol. 9-10 Robert Parrish

Great Slate Test

chosen card divined on slate and duplicate writing appears on another slate, repeated with random name written down by spectator

the flight of the griffins\nspectator writes a question and drops it addressed to the performer into the mail box, performer does the same with the answer, the next day they find out it is correct, with sibylline envelopes\nal mann\nspencer thornton's "anytime, anywhere - for newspaper publicity" in "secrets of mental magic"
1977
the sibylline messages Al Mann

The Flight of the Griffins

spectator writes a question and drops it addressed to the performer into the mail box, performer does the same with the answer, the next day they find out it is correct, with Sibylline envelopes